Initial implementation for Spotify listens export

backends/spotify/client.go

@@ -0,0 +1,80 @@
+/*
+Copyright © 2023 Philipp Wolfer <phw@uploadedlobster.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+package spotify
+
+import (
+	"context"
+	"errors"
+	"strconv"
+	"time"
+
+	"github.com/go-resty/resty/v2"
+	"golang.org/x/oauth2"
+)
+
+const baseURL = "https://api.spotify.com/v1/"
+const MaxItemsPerGet = 50
+
+type Client struct {
+	HttpClient *resty.Client
+}
+
+func NewClient(conf oauth2.Config, token *oauth2.Token) Client {
+	ctx := context.Background()
+	httpClient := conf.Client(ctx, token)
+	client := resty.NewWithClient(httpClient)
+	client.SetBaseURL(baseURL)
+	client.SetHeader("Accept", "application/json")
+	client.SetRetryCount(5)
+	return Client{
+		HttpClient: client,
+	}
+}
+
+func (c Client) RecentlyPlayedAfter(after time.Time, limit int) (RecentlyPlayedResult, error) {
+	return c.recentlyPlayed(&after, nil, limit)
+}
+
+func (c Client) RecentlyPlayedBefore(before time.Time, limit int) (RecentlyPlayedResult, error) {
+	return c.recentlyPlayed(nil, &before, limit)
+}
+
+func (c Client) recentlyPlayed(after *time.Time, before *time.Time, limit int) (result RecentlyPlayedResult, err error) {
+	const path = "/me/player/recently-played"
+	request := c.HttpClient.R().
+		SetQueryParam("limit", strconv.Itoa(limit)).
+		SetResult(&result)
+	if after != nil {
+		request.SetQueryParam("after", strconv.FormatInt(after.Unix(), 10))
+	} else if before != nil {
+		request.SetQueryParam("before", strconv.FormatInt(before.Unix(), 10))
+
+	}
+	response, err := request.Get(path)
+
+	if response.StatusCode() != 200 {
+		err = errors.New(response.String())
+		return
+	}
+	return
+}